Am getting ready to hang a ceiling light fixture. The fixture has a black (power), white (neutral) and a copper wire. The ceiling outlet box has an additional red wire. What do I do with the red wire. Do I just cap it and tuck it away with the other wires? I know that black goes with black, white with white. Also, do I ground the two copper wires to the grounded junction box. Would appreciate some help on this. Thanks !!