SAO PAULO, July 25 (Reuters) - Brazilian electric utility Copel is planning to launch a public share offering of up to 5 billion reais ($1.05 billion), in which it will be privatized, between Tuesday and Wednesday, the company said on Tuesday.

The offering, in which the Parana State government will sell shares in the firm, in addition to the sale of new shares, would total between 4.3 billion reais and 5 billion reais, Copel said.

($1 = 4.7491 reais) (Reporting by Peter Frontini Editing by Chris Reese)