gold-plated copper processor covers

[anarxi]

I want to try to remove the gold plating by electrolysis in sulfuric acid...
just like in this video

bought acid 94%
To do this, I bought 2 kilograms of caps, the purchase price was the price of copper on the stock exchange....
Does it make sense to soak them in hydrochloric acid to remove the solder that holds the crystal?
Is there any value in this solder (silver, gold)?
Is the information in the video about the gold yield of 200 milligrams/1 kg caps correct?

 

[anarxi]

Is a power supply from a led strip suitable for such purposes or is more serious equipment needed, for example a laboratory DC power supply?