Originally Posted by
onlysilver
Etiquette is (as most fine dining restaurants) that plates are not to be removed until all diners at the table have finished. However, if you asked, then it should be removed without a word. It is rather improper to have them removed as it makes everyone at the table feel rushed.
It may or may not be improper, depending upon the circumstances. More than five or ten minutes elapsed with empty, dirty dishes? Time to clear them away.