If you want my personal thought, which may not be correct, I think maybe in the next day it will ROT and stink. If it's a type of cheese, yeah, it will stink and rot. Cream cheese should not sit out at room temperature for more than 2 hours. Less time is better.
Food left out of the refrigerator is okay to eat for about 2 hours. If the temperature is under 80 degrees. The longer a food stays in the danger zone the more risk you take eating that food. Foods should either be kept hot or kept cold before eating to be really safe.
You can, for a little while. A few hours at most. After that, it needs to be refridgerated. The frosting especially will go bad if left out for too long.
It depends on the room temperature. If it was reasonably cool it should be ok, but NOT if very young or old, infirm, or pregnant.
for about 3 hours
The cheese cake will freeze, however the cream cheese frosting will not.
It depends what the frosting is for ! Cream cheese is a savoury product - not sweet.
no
check out http://www.helium.com/items/1189518-recipes-cream-cheese-frosting it looks pretty good :)
It usually wont but if it does its because the cream cheese seperates
cream cheese and vanilla
Use a chocolate cream cheese frosting.
yes
put them in a freezer
yes
You could use either one depending on which you prefer. Normally cream cheese frosting doesn't include spice, but it can be flavored with anything you like.
Chocolate frosting is always a classic and will go great with coffee cakes. My advice is that the simpler your frosting it is, the more extravagant and elegant it will look on your coffee cake.