In my ceiling junction box is a red copper wire, black wire and a white wire which was attached to a light, but the red copper wire was not attached to anything in the junction box.

I now have purchased a ceiling fan with a light and it s has a black wire, white wire, green wire and a black and white wire.

Which wires do I attached together?

Is the red copper wire bare, or does it have red plastic on it like the black and white wires?

Ceiling fan wiring - Ceiling Fans N More

Do you have more than one wall switch that can control this box? Is the box already grounded or is there a green or bare wire passing through the box?