
The provided search context does not contain the specific information needed to answer the question. Based on general knowledge, the number of ounces in a silver dollar depends on the specific coin being referenced.
The classic U.S. silver dollars, which include the Dollar (1878-1921) and the Peace Dollar (1921-1935), are composed of 90% silver and 10% copper. Due to this composition, they contain approximately 0.7734 troy ounces of actual silver.
In a modern context, the term "silver dollar" often refers to the American Silver Eagle bullion coin, which the U.S. Mint began producing in 1986. This coin is specifically designed for investment purposes and contains exactly one troy ounce of 99.9% pure silver. Therefore, it is essential to identify the type of silver dollar to determine its exact silver weight.


