The cheapest metal chromium

[thirdbike]

Now I'm confused. You're suggesting that two identical metals are used connected to opposite terminals of a 5 volt DC output and screened with a piece of plastic. I've done a fair amount of plating but you're explanation of stainless steel for both the spoon and the metal strip just doesn't seem to make sense - but I am willing to hear the an explanation. That being the case, why not use two pieces of the stainless sheet
Thanks