Heat the oven to 350℉. Grease and flour the pan.
Place the chopped strawberries in a bowl and toss them with the lemon juice. Set aside.
In a large bowl, whisk together the cake flour, sugar, baking powder, and salt.
In a medium bowl, whisk together the eggs, milk, and vanilla.
Add the butter and half of the egg mixture to the flour mixture. Mix on low speed until the dry ingredients are thoroughly moistened. Then increase to high speed and beat for one full minute to develop the proper cake structure. (Patience is a virtue!)
Scrape down the sides of the bowl. Then gradually add the remaining egg mixture in two separate batches, beating for 30 seconds after each addition to thoroughly incorporate and further strengthen the structure.
Strain the strawberries, reserving the strawberry infused lemon juice. Then transfer the strawberries to a plate lined with paper towels and gently blot to remove any excess moisture. Fold the strawberries into the batter.
Transfer the batter to the prepared pan, smoothing the top.
Bake for about 25 to 30 minutes, or until a toothpick inserted into the center of the thickest part of the cake comes out clean. Then allow to cool completely in the pan before inverting the cakes onto a wire rack.