Turn the dough out onto a floured work surface. Sprinkle the top with flour. With floured hands, lift the dough to stretch and flatten it slightly, without deflating it, to form a 20 x 12-inch (50 x 30 cm) rectangle. Fold the long sides of the rectangle over each other to form a long rectangle (similar in shape to a baguette). Using a pastry cutter, divide the dough into 8 equal pieces. Arrange the pieces evenly spaced out on the prepared baking sheet. Sprinkle lightly with flour and cover with a clean dishcloth. Let rest at room temperature for 45 minutes.