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If you mean pure copper, no. Quarters were made of 90% silver / 10% copper up till 1964; in 1965 the composition was changed to the current "sandwich" of 75% copper / 25% nickel outer layers bonded to an inner core of pure copper.
If your coin weighs the same as a regular quarter, it's been plated - this is a common high school chemistry experiment. However, if it's thinner than a regular quarter it's possible that you have what's called a lamination error. That happens when the outer cladding on a modern quarter separates from the copper core. Normally that happens only on one side so a double lamination error is fairly scarce; if that's what you appear to have the coin should be inspected in person.
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Were copper quarters made in 1965?
Yes. That was the first year the U.S. minted quarters out of copper instead of silver.
Quarters in 1968 were made of?
All circulation quarters dated 1965 and later are made of copper-nickel.
When did silver quarters end?
1964 was the last year that quarters were struck in 90% silver and 10% copper.
When did the composition of quarters change?
The composition of quarters in the United States changed in 1965. Prior to that, quarters were made of 90% silver. However, starting in 1965, the composition of quarters changed to a mix of copper and nickel, which is still used today.
What are 1940 us quarters made out of?
All quarters dated 1964 and before are made of 90% silver, 10% copper
