Preheat the oven to 400 degrees F, 200 degrees C.
On a large piece of parchment paper, roll out the puff pastry to 12 x 12 inches.
Transfer the parchment paper with the pastry to a large baking sheet.
Lightly score the puff pastry 1 inch from the edge on all 4 sides. Be careful not to cut all the way through the pastry.
Fold the edges of the pastry up to the score line.
Spread a thin layer of strawberry preserves on the puff pastry.
Slice the strawberries lengthwise into 1/4-1/3 inch slices. Arrange the slices on the puff pastry on top of the strawberry preserves. You can overlap the strawberries or lay them flat.
Sprinkle granulated sugar over the top of the strawberries.
Bake the tart in a 400 degree oven for 18-22 minutes, until the edges are puffed and golden brown.
Remove from oven and cool on a cooling rack for 10 minutes.Heat up the apricot preserves just until warm and easy to spread. With a pastry brush, apply a thin layer of the apricot preserves to the top of the pastry and dab onto the strawberries just to give them a beautiful shine. Cut into 6 or 9 squares. A pizza cutter works well with cutting. Serve when cool with a dollop of whipped cream (if desired).