Electroplating experiments with an "electrolytic paintbrush"

[Claudio HG]

Hello everybody, not sure this is the right sub-forum for this topic, even though after all an electrolytic paintbrush should be deemed as a tool, right? What's an electrolytic paintbrush? Well, it's a fancy name for a trivial electrode covered with a colth drenched with an electrolyte.
I am sharing my experiments with a simple method for electroplating copper on steel. The video went quite long (>20') but I've tried to explain how the process works and some attempts to improve it, including using lemon juice!
Notice I am not a chemist, so if you spot any mistake please tell me either in the video's comments section or here.
Hope you'll find it interesting. Cheers. Claudio.