Yes, it is possible and the process is used.
epc on silver simply means electroplated copper , or in other terms you have an item that is made of silver over copper.
copper(Cu)is the cheapest metal to be electroplated.
A kinds of metals can be electroplated, such as gold, silver, tin, zinc, copper, cadmium, chromium, platinum and lead
Electroplated
electroplated nickle silver
EP brass is not real silver. EP stands for electroplated, which means that the brass has been coated with a thin layer of silver using an electroplating process. This gives the appearance of silver but the base metal is still brass.
i have spoon silver with ep on it and some other markings
"EP" on silver typically stands for "electroplated," indicating that the item is not solid silver but rather coated with a thin layer of silver through electroplating. "NS" may stand for "Nickel Silver," which is an alloy of nickel, copper, and zinc that closely resembles silver but does not actually contain any silver.
An electrolytic cell
The acronym EPNS stands for electroplated nickel silver. This is commonly seen on silver flatware and serving pieces. It is the most common of all the stamps seen on these items.
No, EP NS typically does not indicate that something is silver. EP stands for electroplated, meaning that the item is plated with a layer of silver. NS usually means "nickel silver," which is a base metal alloy containing nickel, copper, and zinc, not real silver.
The marking "EPC 237" on a silver item likely indicates that the piece is electroplated silver over copper. "EPC" stands for "Electro Plated Copper," and "237" could be a code for the specific type or manufacturer of the silver-plated item. These markings are used to indicate the base metal and silver content of the item.