OMG NO! please go shopping with an adult

Speaking from an etiquette point of view I have to say "No". It is a bit too"revealing". The color is OK because it is summer but it may just be a wee bit too revealing. Remember, it is a memorial for a death, may if you could wrap a casual scarf around your shoulders for the ceremony part and then take if off afterwards it would be fine. But it is far too revealing alone for the ceremony.

Peace & Love :)

Honestly, that seems a little too "playful" for a memorial. Something a little more conservative would be more appropriate, I think.

EDIT: That second dress might work, mainly because it's a darker color. Usually, for things like this, people wear darker colors. For funerals, they usually wear black. You may already know this, but I just thought I'd add it.

Good luck. And I am sorry to hear about your loss.

Thats too casual. Wear a dress with at least short sleeve, not straps, too open & heels, not flats.

If you wear a dress with no sleeves please wear a shawl or something to cover your shoulders.

Always darker colours( year round) and respectful attire- semi-formal. No jeans or low cut tops. You don't have to have dark netting covering your face. Your outfit will show what a sincere ,loving person you are.

I would not wear that. You should still dress up, that's a bit too summery. Do you have a black skirt and a nice short sleeve blouse to wear with it? I would keep it simple.

Business casual is always a safe bet - no open toed shoes, bare shoulders or low cut tops. Wear a pair of slacks and a button up top with loafers. If that's not your style remember that this isn't a party - it's a memorial service. If you opt for a dress make sure it's in a similar fashion. That dress is way too 'going out' and you'll be out of place.