In 1885 the US made silver dimes, quarters, halves, and dollars at various mints so that's too broad a question to provide a specific answer. Please post a new question with the coin's denomination.
A coin, such as the one you have described, must be seen before a estimate could be made. I suggest you take the coin to a coin shop and have it appraised.
Assuming the coin is circulated and has no mintmark, the 1885 Morgan is a high mintage common date, retail values are $17.00-$26.00 depending on the grade of the coin.
The 5 coin proof set has a value of $6, the 10 coin set has a value of $15 and the 10 coin silver set has a value of $48.
It really depends on which coin it is. Is it a US silver dollar or dime? There is a big difference. Is it a world coin? What country is it from? All of these things matter when figuring the value of a coin.
No such coin was minted by the US mint.
The only years silver was used in US nickels was 1942-1945, the coin is face value.
The US never made silver pennies. It would cost too much for the mint to make them. Your coin is plated silver this adds no value to the coin.
7-17-11>> Assuming the coin is circulated and has no mintmark, the 1885 Morgan is a high mintage common date, retail values are $36.00-$41.00 depending on the grade of the coin.
A replica of the coin (fake coin) has a value of about US$30, is usually made of non-silver alloy, and has no silver color. As a coin collector, you may still collect a replica coin, because it does have a historical value. A real Sungarei, Chinese Qing dynasty silver coin was minted in 1897 although the minting year was not on the coin. The edge of the real silver coin had the artist's English name, L. GIORGI. Entire coin was in shining silver color, and 1.75 inches in diameter. The current value of a real Sungarei silver coin, 1 Teal, is at least US$10,000.
An 1885 Morgan silver dollar is still legal tender at face value of one dollar, though it's currently worth nearly $20 for the silver content. If by chance the coin is golden in color and a little bigger than a quarter, and either says Chester A. Arthur 1881-1885 or Grover Cleveland 1885-1889, then it's a modern presidential dollar, worth one dollar.
See the website link below for a list of US silver coins made for circulation and their melt value.
The US has never made a one cent silver coin. It's likely been plated as a novelty coin or to be used as jewelry. It has no collectible value.