What does one do with all of that silver-laden ferric nitrate?
Bill, Perhaps your dentist can give you the name of a silver
reclaimer. There used to be companies that collected discarded x-ray
film and extracted the silver from them.
I don’t know how to precipitate the silver out of solution. One
Christmas my dad shaped copper wire into a star shape, stuck it into
a cork, then suspended it into a something-nitrate solution from his
lab (he was a biochemist). Overnight, the copper wire became
encrusted with silver. The silver snowflake went onto the mantle.