Oct 15 (Reuters) - Mac-Gray Corp TUC.N , a coin laundry operator, said it would sell itself to CSC ServiceWorks Inc for about $524 million, including debt.

Mac-Gray, which operates laundries in apartment buildings and student residence halls, said the offer for $21.25 per share is at a premium of 42 percent to Mac-Gray's Monday close.

ID:nPnNE97525

The company's shares rose 5 percent to $15.75 before the bell on Tuesday.

(Reporting by Sagarika Jaisinghani in Bangalore)

((sagarika.jaisinghani@thomsonreuters.com)(within U.S. +1 646 223 8780, outside U.S. +91 80 6749 6437)(Reuters Messaging: sagarika.jaisinghani.thomsonreuters.com@reuters.net))

Keywords: MACGRAY OFFER/