I have gotten 288.00 in a Tidy Cat plastic bucket. Coppers would weigh around 195. Find a place where you are gonna store them and fill them there. If you stack them, put the empty on top then start filling.
You don't have to be the BEST you just have to be.......SLICK
These are all I use for copper storage, usually get around 190 lbs in one. I was excited when I managed to stuff one full over 200 lbs a couple weeks back!