Hello! First time member, first post. I need help!

I have this massive slab of copper. The issue is its in between two 1/2 inch sheets of steel. This big slab came from a industrial plant I frequently am allowed to search for thrown away metals. What happened was they put 2 inches of copper in between two 1/2 inch plates of steel. They than hardened it by putting it in some chamber and had an explosion to fuse the two metals together. There has to be about 500 pounds of copper in this bad boy. The steel is just so hard to grind away. The copper is also a lot harder than it normally is.



I'm confused on what to do, and have no more ideas. I have 1000 bucks getting grown over by weeds in my yard. I need advice!