I’ll be drying the silver out and weighing it sometime in the next couple days. Closest guess when I do gets bragging rights! (And absolutely nothing else)
The scale was zeroed with the beaker empty, and it contains only water and silver (and a trace amount of copper nitrate). If you have a strategy behind your guess, please do share it!
Unfortunately you weren’t the closest (ended up being 817g and some people undercut you) but I will give you the award for most sensible calculation.