Slice the chicken breasts in half horizontally to create thinner cutlets.
Place the chicken between two sheets of plastic wrap and gently pound to an even thickness of about 1/2 inch.
In a shallow dish, combine the flour, salt, black pepper, garlic powder, and paprika.
Dredge each chicken cutlet in the flour mixture, shaking off any excess.
In a large skillet, heat the olive oil over medium-high heat.
Add the chicken cutlets to the skillet in a single layer and cook for about 3-4 minutes on each side, or until golden brown and cooked through.
Remove the chicken from the skillet and set aside.
In the same skillet, reduce the heat to medium and add the butter.
Once melted, pour in the chicken broth and lemon juice, scraping up any browned bits from the bottom of the pan.
Stir in the capers if using and let the sauce simmer for about 2-3 minutes until slightly thickened.
Return the chicken to the skillet, spooning the sauce over the top.
Cook for an additional 1-2 minutes to heat through.
Garnish with fresh parsley before serving.