I need a wedding cake ,a traditional cake served at wedding receptions. 
Having a wedding, eh?  Are you talking about those multi-layer cakes with the white icing on it?
Cake decorating
Cake decorating is one of the sugar arts that uses icing or frosting and other edible decorative elements to make plain cakes more visually interesting. Alternatively, cakes can be molded and sculpted to resemble three-dimensional persons, places and things.
Cakes are decorated to mark a special celebration (such as a birthday or wedding). They can also mark national or religious holidays, or be used to promote commercial enterprises. However, cakes may be baked and decorated for almost any social occasion.
History.
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The reception.
After this, the celebrations shift to a reception at which the newly married couple, as the guests of honor, and the hosts and perhaps members of the wedding party greet the guests in a receiving line. Although now commonly called a reception no matter the style of party, wedding celebrations range from simple receptions to dinner parties to grand wedding balls.
Food is served, particularly including a wedding cake. Wedding cakes are often multi-tiered layer cakes that are elaborately decorated with white icing