Yes, FLORENCES is a Scrabble word!

Letter values in Scrabble US: F 4, L 1, O 1, R 1, E 1, N 1, C 3, E 1, S 1.

Is it a valid word?

FLORENCES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

a city in central Italy on the Arno; provincial capital of Tuscany; center of the Italian Renaissance from 14th to 16th centuries
a town in northeast South Carolina; transportation center

Not playable in Scrabble US: FIRENZE.