Ok so here is what im trying to do lol.

I am trying to hook this electric baseboard heater up. Its an older one that was here in ym house when i bought my place. Now my problem is there are two black wires. One black wire on top and one grayish/black wire on the bottom. I dont know which one do i connect to the black wire from the thermostat and which one do i connect to the white wire coming from the thermostat. I hope someone can help cause its buggin me badly lol

Also where in the world do i put the copper ground wire, there does not seem to be a spot to place it. Usually there is a green screw to place the ground to but there is not one here.

Thanks and looking forward to learning from this experience.