Nevada. "Nevadas" is one translation for "snowcapped."
Related trivia: there are two other states which have names that are similar to Spanish words: Colorado and Montana. Montana (with that squiggly line -- I forget what it's called -- over the second "n") means mountain, and colorada means ruddy, florid, or red.
Florida means "flower-filled" in Spanish.
The US bought the state of Florida from the Spanish.
It was a Spanish State, and after the Spanish-Mexican War it became a Mexican State. The Mexican-American War made it a US Territory and then a US State. It was the First State admitted to the Union in 1912.
No, it means: We Or sometimes: Us
California
No, Florida became a US State in 1845 and the Spanish American War was in 1898.
There are no countries within the US, however virtually every state has at least a few Spanish speakers.
Colorado
New Mexico
That means "They won't move us".
Flowered, blooming, flowery
No state in the U.S. currently has Spanish as its official language.